Plate Tectonic Theory
- Created by: natatalie
- Created on: 01-01-16 22:55
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- Plate Tectonic Theory
- Alfred Wegner
- Published his theory in 1912
- Gave the idea about Pangaea being a supercontinent
- Suggested that it had drifted apart into pieces
- Biological Evidence
- Remains of similar fossils found
- Lystrosaurus fossils found across continents
- Between Africa and Antarctica
- Lystrosaurus fossils found across continents
- Remains of similar fossils found
- Jigsaw Fit
- Where countries appear to fit together
- South America and Africa
- Where countries appear to fit together
- Matching Geology
- Similar geology found oceans apart
- Scotland and Canada have similar geology
- Same age and types of rocks
- Also South America and Africa
- Similar geology found oceans apart
- Climatological Evidence
- Coal deposits of a similar age found on different continents
- Places like Antarctica, North America, Svalbard and UK
- They must have drifted apart since they are no longer in a tropical zone
- Similar glacial deposits found in India, Antarctica and Australia
- Coal deposits of a similar age found on different continents
- Paleomagnetism
- Once every 200,000 years the earths polarity reverses
- Provides evidence of sea floor spreading
- Plate Tectonics
- Plates are moved by convection currents
- Alfred Wegner
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